Journal of pediatric endocrinology & metabolism : JPEM · 2021
Microdeletion in the IGF-1 receptor gene of a patient with short stature and obesity: a case report.
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
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Yoon Jong Seo, Hwang Il Tae
Аннотация
OBJECTIVES: Defects in the IGF-1 receptor gene (IGF1R) induce IGF-1 resistance, characterized by intrauterine and postnatal growth retardation, normal or elevated serum IGF-1 levels, and feeding problems. Obesity, idiopathic growth hormone deficiency (IGHD), bone age advancement, and serum IGF-1 level in the lower half of the reference range are very rare clinical features in patients with IGF1R defects.
CASE PRESENTATION: In this study, we report the atypical clinical manifestations of IGF1R defects. Short stature girl born small for gestational age were initially diagnosed with IGHD. No catch-up growth was achieved despite sufficiently elevated IGF-1 levels after recombinant human growth hormone (rhGH) treatment. Single nucleotide polymorphism microarray analysis finally confirmed terminal deletion of 15q26.2q26.3 in the subject.
CONCLUSION: Intrauterine growth retardation, postnatal growth failure, and IGF-1 resistance during rhGH treatment are homologous features exhibited by affected patients, and may be predictive of IGF1R defects.
CASE PRESENTATION: In this study, we report the atypical clinical manifestations of IGF1R defects. Short stature girl born small for gestational age were initially diagnosed with IGHD. No catch-up growth was achieved despite sufficiently elevated IGF-1 levels after recombinant human growth hormone (rhGH) treatment. Single nucleotide polymorphism microarray analysis finally confirmed terminal deletion of 15q26.2q26.3 in the subject.
CONCLUSION: Intrauterine growth retardation, postnatal growth failure, and IGF-1 resistance during rhGH treatment are homologous features exhibited by affected patients, and may be predictive of IGF1R defects.